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6.0
SCREEN DISPLAY & PERFORMANCE SPECIFICATION
6.1
CRT specification
Cathode ray tube to be used 21 inch flat (diagonal) tube with 90 degrees magnetic deflection and low voltage
focus.(Samsung M51QEQ991X001 )
6.1.1 Type
:
21” in line anti-glare anti-static tube
6.1.2 Phosphor
:
P22 medium short persistence phosphor
6.1.3 Dot trio pitch
:
0.25mm
6.1.4 Light transmission
:
50% Center
6.1.5 Implosion protection
:
Tension band
6.2
Active Display Area
Horizontal
:
390 ± 4.0mm
Vertical
:
290 ± 4.0mm
All modes must be able to meet the above spec. by adjusting horizontal size and vertical size from front panel.
6.3
Picture Centering (refer to FIG.5)
Horizontal centering
:︱
g3-g4
︱≦
4mm
Vertical centering
:︱
g1-g2
︱≦
4mm
All modes must be able to meet the above spec. by adjusting horizontal position and vertical position from front
panel.
6.4
Tilt (refer to FIG.6)
Maximum
:
2.0mm
6.5
Trapezoid Distortion (refer to FIG.4)
Vertical
:
2.0mm
Horizontal
:
2.0mm
6.6
Geometry Distortion
a.
Barrel (refer to FIG.3)
Top & bottom
:
a2
≦
1.5mm , b2
≦
1.5mm
Left & right
:
c2
≦
1.5mm , d2
≦
1.5mm
b.
Pincushion (refer to FIG.2)
Top & bottom
:
a1
≦
2.0mm , b1
≦
2.0mm
Left & right
︰
c1
≦
2.0mm , d1
≦
2.0mm
6.7
Linearity (refer to FIG.1)
Horizontal
︰
( Xmax. – Xmin. ) / ( Xmax. + Xmin. )×100%
≦
5%
Vertical
:
( Ymax.–Ymin .) / ( Ymax. + Ymin. )×100%
≦
5%
6.8
Size variation
Picture size deviation should not change beyond the specification with the following variance.
a.
High Voltage variance, max.
From 1 to 20FL
:
1.5mm
b.
Temperature variance, max.
Across op. Range
:
2.5mm
c.
Line voltage, max.
Across op. Range
:
2mm
d.
Wavy, Jitter & Noise
Viewed at 50cm
:
No objectionable.
ViewSonic Corporation
9
Confidential
–
Do
Not
Copy
G220f
-1_G220f
B
-1
Summary of Contents for G220f-1
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